期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2009
卷号：XXXVIII-8/W3
页码：62
出版社：Copernicus Publications
摘要：The growth of human population, increasing demand for agricultural production and concerns about food security in the world are among the reasons for growing interest in land monitoring based on satellite remote sensing. The semi-arid regions are also very sensitive to global climate change and all vegetation there depends strongly on weather conditions and water availability. The objective of this study is to evaluate the topographical changes and climactic variability on agricultural land use changes in semi-arid terrain using hyperspectral and multi spectral remote sensing data. Multi temporal Landsat TM & ETM+ and EO-1 ALI data were used for extracting agricultural land use changes. Through these analyses describe the changing character of agriculture in this region, and by integrating this hyperspectral data with biophysical information on climate and hydrology it is possible to evaluate the hydrologic impact of various water extraction and diversion schemes. The information provided in this study has many areas of application, including in environmental management and planning, hydrological watershed analysis and modeling, landform and natural resource evaluations, and hydropower infrastructure planning and construction
